15de18cdeSSam Ravnborg /* 25de18cdeSSam Ravnborg * init.c: Initialize internal variables used by the PROM 35de18cdeSSam Ravnborg * library functions. 45de18cdeSSam Ravnborg * 55de18cdeSSam Ravnborg * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 65de18cdeSSam Ravnborg * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) 75de18cdeSSam Ravnborg */ 85de18cdeSSam Ravnborg 95de18cdeSSam Ravnborg #include <linux/kernel.h> 105de18cdeSSam Ravnborg #include <linux/init.h> 115de18cdeSSam Ravnborg #include <linux/string.h> 125de18cdeSSam Ravnborg #include <linux/ctype.h> 135de18cdeSSam Ravnborg 145de18cdeSSam Ravnborg #include <asm/openprom.h> 155de18cdeSSam Ravnborg #include <asm/oplib.h> 165de18cdeSSam Ravnborg 175de18cdeSSam Ravnborg /* OBP version string. */ 185de18cdeSSam Ravnborg char prom_version[80]; 195de18cdeSSam Ravnborg 205de18cdeSSam Ravnborg /* The root node of the prom device tree. */ 21bce5feeaSDavid S. Miller int prom_stdout; 228d125562SAndres Salomon phandle prom_chosen_node; 235de18cdeSSam Ravnborg 245de18cdeSSam Ravnborg /* You must call prom_init() before you attempt to use any of the 25e393d1bdSGeert Uytterhoeven * routines in the prom library. 26e393d1bdSGeert Uytterhoeven * It gets passed the pointer to the PROM vector. 275de18cdeSSam Ravnborg */ 285de18cdeSSam Ravnborg 29*ef3e035cSDavid S. Miller extern void prom_cif_init(void *); 305de18cdeSSam Ravnborg 31*ef3e035cSDavid S. Miller void __init prom_init(void *cif_handler) 325de18cdeSSam Ravnborg { 338d125562SAndres Salomon phandle node; 345de18cdeSSam Ravnborg 35*ef3e035cSDavid S. Miller prom_cif_init(cif_handler); 365de18cdeSSam Ravnborg 375de18cdeSSam Ravnborg prom_chosen_node = prom_finddevice(prom_chosen_path); 384a3a2552SAndres Salomon if (!prom_chosen_node || (s32)prom_chosen_node == -1) 395de18cdeSSam Ravnborg prom_halt(); 405de18cdeSSam Ravnborg 415de18cdeSSam Ravnborg prom_stdout = prom_getint(prom_chosen_node, "stdout"); 425de18cdeSSam Ravnborg 435de18cdeSSam Ravnborg node = prom_finddevice("/openprom"); 444a3a2552SAndres Salomon if (!node || (s32)node == -1) 455de18cdeSSam Ravnborg prom_halt(); 465de18cdeSSam Ravnborg 475de18cdeSSam Ravnborg prom_getstring(node, "version", prom_version, sizeof(prom_version)); 485de18cdeSSam Ravnborg 495de18cdeSSam Ravnborg prom_printf("\n"); 505de18cdeSSam Ravnborg } 515de18cdeSSam Ravnborg 525de18cdeSSam Ravnborg void __init prom_init_report(void) 535de18cdeSSam Ravnborg { 545de18cdeSSam Ravnborg printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version); 555de18cdeSSam Ravnborg printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible); 565de18cdeSSam Ravnborg } 57